Editing Wave soldering (section)

==Cleaning==
Some types of flux, called "no-clean" fluxes, do not require cleaning; their residues are benign after the soldering process.<ref name="noclean">{{Cite book|title=Principles of Soldering
|page=118
|url=https://books.google.com/books?id=cQ6khQScBF4C&pg=PA118
|author=Giles Humpston |author2=David M. Jacobson
|year=2004|isbn=978-1-61503-170-2
}}</ref>  Typically no-clean fluxes are especially sensitive to process conditions, which may make them undesirable in some applications.<ref name="noclean"/>  Other kinds of flux, however, require a cleaning stage, in which the PCB is washed with [[solvent]]s and/or [[deionized water]] to remove flux residue.